23 lines
961 B
TypeScript
23 lines
961 B
TypeScript
/**
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* @export
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* @method pushToUniqueArray
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* @param {T[]} data - An array of objects.
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* @param {T} entry - The object to insert or replace with.
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* @param {getUniqueMethod: (entry: T) => unknown} [getUniqueMethod] - Method to get the unique value of an entry.
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* @description - Append or replaces an item of an Array.
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* @example <caption>Example append new entry for a Array. Where the key is unique and the item will be updated if matched with existing.</caption>
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* const entry = {key: 'myKey', value: 'myValue'};
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* const newDataSet = pushToUniqueArray([], entry, x => x.key === key);
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* mySubject.next(newDataSet);
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*/
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export function pushToUniqueArray<T>(data: T[], entry: T, getUniqueMethod: (entry: T) => unknown): T[] {
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const unique = getUniqueMethod(entry);
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const indexToReplace = data.findIndex((x) => getUniqueMethod(x) === unique);
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if (indexToReplace !== -1) {
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data[indexToReplace] = entry;
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} else {
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data.push(entry);
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}
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return data;
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}
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